Бесплатно 

X-axis belt tensioner for Ender 3 (Pro) which reuses original screws and pully. It mounts at the same place as the original belt tensioner.
All you need is a M4x25 screw and M4 nut for tension.
Print the Tensioner_knob.STL from the original model.
Use print setting for stronger parts: 3+ walls, 40 % infill, 5 top and bottom layers.







![X-axis belt tensioner piece for Ender 3 S1 [Pro/Plus]](https://cache.polyzon.org/api/img?url=https%3A%2F%2Fmedia.printables.com%2Fmedia%2Fprints%2F426628%2Fimages%2F3530967_3b2e0b21-342e-4309-81ab-5285d82df414%2Fimg_20230318_124349.jpg&w=300)




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